blinds

Mutable Instruments Blinds

Scale, invert, offset, and mix four signals at once

12 HP Eurorack module

Blinds is a quad VC-polarizer that lets you scale, invert, and offset up to four modulation or audio signals simultaneously. Each channel functions as a VCA, inverter, ring modulator, or CV mixer depending on how it is patched, making it an expressive hub for shaping and combining modulations. Its bipolar gain range and offset capability give it a characterful, musical flexibility rare in utility modules.

Features

  • Four independent VC-polarizer channels
  • Bipolar gain range of +/-2 per channel
  • Linear gain response: +5V CV = gain of 1
  • CV offset range of +/-5V per channel
  • All inputs DC-coupled and audio-rate capable
  • Input impedance of 100k on all inputs
  • Can function as VCA, inverter, ring modulator, CV mixer, or offset generator
  • LED per channel for visual feedback of signal level and polarity
  • 12HP wide, 25mm deep

Controls & Jacks (27)

  • Channel 1 Output LED— Output level indicator for channel 1
  • Channel 2 Output LED— Output level indicator for channel 2
  • Channel 1 Offset— Manual offset control for channel 1 (+/- 5V range)
  • Channel 1 Input— Audio or CV input for channel 1
  • Channel 1 Gain CV— CV control input for channel 1 gain/VCA
  • Channel 3 Output LED— Output level indicator for channel 3
  • Channel 1 Output— Scaled, inverted, and offset output from channel 1
  • Channel 2 Input— Audio or CV input for channel 2
  • Channel 1— Output level indicator for channel 4
  • Channel 2 Offset— Manual offset control for channel 2 (+/- 5V range)
  • Channel 2— Output level indicator for channel 2
  • Channel 4 Offset— Manual offset control for channel 4 (+/- 5V range)
  • Channel 2 Gain CV— CV control input for channel 2 gain/VCA
  • Channel 1 Gain— Manual gain/attenuation control for channel 1
  • Channel 3 Input— Audio or CV input for channel 3
  • Channel 2 Gain— Manual gain/attenuation control for channel 2
  • Channel 3 Offset— Manual offset control for channel 3 (+/- 5V range)
  • Channel 3 Gain CV— CV control input for channel 3 gain/VCA
  • Channel 4 Input— Audio or CV input for channel 4
  • Channel 3— Output level indicator for channel 3
  • Channel 2 Output— Scaled, inverted, and offset output from channel 2
  • Channel 3 Gain— Manual gain/attenuation control for channel 3
  • Channel 4 Gain CV— CV control input for channel 4 gain/VCA
  • Channel 4 Gain— Manual gain/attenuation control for channel 4
  • Channel 4— Output level indicator for channel 4
  • Channel 3 Output— Scaled, inverted, and offset output from channel 3
  • Channel 4 Output— Scaled, inverted, and offset output from channel 4

How-To Guides

  • Classic VCA with Envelope
  • Ring Modulator for Metallic Tones
  • LFO Depth and Inversion Control
  • Four-CV Mixer for Complex Modulation
  • VC Panning with Two Channels
  • Amplitude Modulation (AM Synthesis)
  • Offset and Scale Any Modulation Source
  • Slowly Inverting Drone Modulation
  • Punchy Percussive CV Shaping

Explore the interactive Blinds panel on BleepDex — tap any control to learn what it does.

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